The story
- Proto-Indo-European*h₁éǵʰ
- Proto-Indo-European*h₁eǵʰs
- Proto-Hellenic*eks
- Ancient Greekἐκ (ek)
- Ancient Greekἔξω (éxō)
- Englishexo-
- Latinde
- Russianдэ (dɛ)
- Englishde
- EnglishEnzym
- Englishenzyme
- English todayexoenzyme
Etymology from Wiktionary, CC BY-SA 4.0.